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A084497 as a simple table

na(n)
11
23
32
45
56
64
79
87
98
1012
1111
1210
1314
1415
1516
1613
1718
1820
1919
2017
2123
2221
2324
2422
2527
2626
2728
2825
2931
3032
3129
3230
3335
3436
3534
3633
3740
3837
3938
4039
4144
4241
4343
4442
4548
4646
4745
4847
4952
5050
5151
5249
5356
5455
5553
5654
5760
5859
5958
6057
6162
6264
6365
6461
6563
6667
6770
6866
6969
7068
7172
7275

[1,3,2,5,6,4,9,7,8,12,11,10,14,15,16,13,18,20,19,
 17,23,21,24,22,27,26,28,25,31,32,29,30,35,36,34,
 33,40,37,38,39,44,41,43,42,48,46,45,47,52,50,51,
 49,56,55,53,54,60,59,58,57,62,64,65,61,63,67,70,
 66,69,68,72,75]